Home / 9,137.28-12,612.66-5,552.28

Finding the Fourth Proportional to 9,137.28, 12,612.66 and 5,552.28

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Solution

The fourth proportional to 9,137.28, 12,612.66 and 5,552.28 is: 7,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.28 : 12,612.66 = 5,552.28 : x
  2. Step 2: Convert to fraction form
    9,137.28/12,612.66 = 5,552.28/x
  3. Step 3: Cross multiply
    9,137.28x = 12,612.66 × 5,552.28
  4. Step 4: Simplify right side
    9,137.28x = 70,029,019.86
  5. Step 5: Solve for x
    x = 70,029,019.86/9,137.28
  6. Step 6: Final answer
    x = 7,664.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.